uhd

#

# Copyright 2010-2011 Ettus Research LLC

#

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

#

IF(NOT DEFINED INCLUDED_UHD_PYTHON_CMAKE)

SET(INCLUDED_UHD_PYTHON_CMAKE TRUE)

########################################################################

# Setup Python

########################################################################

MESSAGE(STATUS "")

MESSAGE(STATUS "Configuring the python interpreter...")

#this allows the user to override PYTHON_EXECUTABLE

IF(PYTHON_EXECUTABLE)

    SET(PYTHONINTERP_FOUND TRUE)

#otherwise if not set, try to automatically find it

ELSE(PYTHON_EXECUTABLE)

    #use the built-in find script

    FIND_PACKAGE(PythonInterp)

    #and if that fails use the find program routine

    IF(NOT PYTHONINTERP_FOUND)

        FIND_PROGRAM(PYTHON_EXECUTABLE NAMES python python2.7 python2.6)

        IF(PYTHON_EXECUTABLE)

            SET(PYTHONINTERP_FOUND TRUE)

        ENDIF(PYTHON_EXECUTABLE)

    ENDIF(NOT PYTHONINTERP_FOUND)

ENDIF(PYTHON_EXECUTABLE)

#make the path to the executable appear in the cmake gui

SET(PYTHON_EXECUTABLE ${PYTHON_EXECUTABLE} CACHE FILEPATH "python interpreter")

MESSAGE(STATUS "Python interpreter: ${PYTHON_EXECUTABLE}")

MESSAGE(STATUS "Override with: -DPYTHON_EXECUTABLE=<path-to-python>")

IF(NOT PYTHONINTERP_FOUND)

    MESSAGE(FATAL_ERROR "Error: Python interpretor required by the build system.")

ENDIF(NOT PYTHONINTERP_FOUND)

MACRO(PYTHON_CHECK_MODULE desc mod cmd have)

    MESSAGE(STATUS "")

    MESSAGE(STATUS "Python checking for ${desc}")

    EXECUTE_PROCESS(

        COMMAND ${PYTHON_EXECUTABLE} -c "

#########################################

try: import ${mod}

except: exit(1)

try: assert ${cmd}

except: exit(2)

exit(0)

#########################################"

        RESULT_VARIABLE ${have}

    )

    IF(${have} EQUAL 0)

        MESSAGE(STATUS "Python checking for ${desc} - found")

        SET(${have} TRUE)

    ELSEIF(${have} EQUAL 1)

        MESSAGE(STATUS "Python checking for ${desc} - \"import ${mod}\" failed")

        SET(${have} FALSE)

    ELSEIF(${have} EQUAL 2)

        MESSAGE(STATUS "Python checking for ${desc} - \"assert ${cmd}\" failed")

        SET(${have} FALSE)

    ELSE()

        MESSAGE(STATUS "Python checking for ${desc} - unknown error")

        SET(${have} FALSE)

    ENDIF()

ENDMACRO(PYTHON_CHECK_MODULE)

ENDIF(NOT DEFINED INCLUDED_UHD_PYTHON_CMAKE)